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Dan Albert287553d2017-02-16 10:47:51 -08001/*-
2 * Copyright (c) 1997 Niklas Hallqvist. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25#ifndef _SYS_ENDIAN_H_
26#define _SYS_ENDIAN_H_
27
28#include <sys/cdefs.h>
29
30#include <stdint.h>
31
32#define _LITTLE_ENDIAN 1234
33#define _BIG_ENDIAN 4321
34#define _PDP_ENDIAN 3412
35#define _BYTE_ORDER _LITTLE_ENDIAN
36#define __LITTLE_ENDIAN_BITFIELD
37
38#ifndef __LITTLE_ENDIAN
39#define __LITTLE_ENDIAN _LITTLE_ENDIAN
40#endif
41#ifndef __BIG_ENDIAN
42#define __BIG_ENDIAN _BIG_ENDIAN
43#endif
44#define __BYTE_ORDER _BYTE_ORDER
45
46#define __swap16 __builtin_bswap16
47#define __swap32 __builtin_bswap32
48#define __swap64 __builtin_bswap64
49
50/* glibc compatibility. */
51__BEGIN_DECLS
52uint32_t htonl(uint32_t) __pure2;
53uint16_t htons(uint16_t) __pure2;
54uint32_t ntohl(uint32_t) __pure2;
55uint16_t ntohs(uint16_t) __pure2;
56__END_DECLS
57
58#define htonl(x) __swap32(x)
59#define htons(x) __swap16(x)
60#define ntohl(x) __swap32(x)
61#define ntohs(x) __swap16(x)
62
63/* Bionic additions */
64#define htonq(x) __swap64(x)
65#define ntohq(x) __swap64(x)
66
67#if __BSD_VISIBLE
68#define LITTLE_ENDIAN _LITTLE_ENDIAN
69#define BIG_ENDIAN _BIG_ENDIAN
70#define PDP_ENDIAN _PDP_ENDIAN
71#define BYTE_ORDER _BYTE_ORDER
72
73#define NTOHL(x) (x) = ntohl((u_int32_t)(x))
74#define NTOHS(x) (x) = ntohs((u_int16_t)(x))
75#define HTONL(x) (x) = htonl((u_int32_t)(x))
76#define HTONS(x) (x) = htons((u_int16_t)(x))
77
78#define htobe16 __swap16
79#define htobe32 __swap32
80#define htobe64 __swap64
81#define betoh16 __swap16
82#define betoh32 __swap32
83#define betoh64 __swap64
84
85#define htole16(x) (x)
86#define htole32(x) (x)
87#define htole64(x) (x)
88#define letoh16(x) (x)
89#define letoh32(x) (x)
90#define letoh64(x) (x)
91
92/*
93 * glibc-compatible beXXtoh/leXXtoh synonyms for htobeXX/htoleXX.
94 * The BSDs export both sets of names, bionic historically only
95 * exported the ones above (or on the rhs here), and glibc only
96 * exports these names (on the lhs).
97 */
98#define be16toh(x) htobe16(x)
99#define be32toh(x) htobe32(x)
100#define be64toh(x) htobe64(x)
101#define le16toh(x) htole16(x)
102#define le32toh(x) htole32(x)
103#define le64toh(x) htole64(x)
104#endif /* __BSD_VISIBLE */
105
106#endif /* _SYS_ENDIAN_H_ */